Why does the orchid turn yellow

Orchids are moderately demanding of the conditions created for them, many factors affect the growth and development of the flower. There are a number of reasons from – for which the orchid turns yellow. You can save flower stalks and prevent the spread of infection further, the main thing is to start treatment of the plant in a timely manner.

  1. Lighting <
  2. Watering
  3. Fertilizers <
  4. Diseases
  5. Pests
  6. Age
  7. Close pot
  8. Stress
  9. Prevention
  10. Care recommendations
  11. Conclusion <

Причины пожелтения орхидеи

Causes of yellowing of the orchid


Without good lighting, the home orchid will be deprived The lack of lighting is manifested by the pallor of the upper roots, which is easily eliminated. put phalaenopsis in a more lighted place. If dark spots are found, the plant received a sunburn due to direct sunlight. Cut the affected area at the very base, and rearrange the orchid itself in the shade.


  • Poor watering is the first reason you feel unwell. Hard water filled with excess salts and metals should not be used. If the cause of the disease state of the plant is this, then the very lowest leaves turn yellow first in the orchid, and all subsequent ones are covered with yellow spots. If the plant is at rest, urgently need to be transplanted into a new substrate.If flowering is in full swing and transplantation is not possible, water the plant with diluted 5050 distilled water and the usual sediment from the crown to the base.
  • Lack of moisture – regularly check the soil, if it dries, put a flower pot in a large container with water for 30 minutes, then let the water drain completely and return the phalaenopsis to its original place.
  • Excessive watering will lead to decay of the roots, their lethargy, moist spots will appear and soon the leaf will fall off. If an overflow occurs and the root rots, the orchid should be transplanted into a new substrate, removing the damaged areas, but at the beginning wait for it to fade.


If a previously healthy home orchid has turned yellow and dried out, an excess of fertilizer may be the cause. When the stem and flowers wither, and the leaf falls, phalaenopsis can be saved. To do this, rinse the substrate or transplant a flower, it is impossible to feed the next few months, after only diluted fertilizer.

If only the tips or lower leaves are yellow and wrinkled, then the orchid suffers from an excess of calcium. Change the substrate. In this case, for a while, the need for feeding disappears. If the orchid turns yellow on top, veins appear on the leaves and eventually crumble, then the reason for the lack of potassium is to use special fertilizer.


The orchid dries from fungal infections, they occur with frequent watering and affect the root system and trunk of the flower. If decay is not stopped in time, then it will affect the leaves, causing them to turn yellow and fall. It is necessary to immediately take measures – replace the substrate, cut off the affected areas and treat phalaenopsis with an antifungal drug. Use fungicides for prophylaxis.

Due to bacterial infections, the leaves turn yellow, darken over time, become lethargic and wrinkled, and weeping spots with an unpleasant smell of rot appear. Isolate the plant, trim the affected areas and treat the sections with iodine. Only after treatment with an antifungal drug can the flowerpot be returned to its original place.


Most of all, mites and white-winged moth love orchids. Due to a mite infection, the roots and trunk of the plant receive less nutrients and moisture, the leaves react first, they turn yellow and lose their elasticity. To save the flower, treat it with a special preparation and after passing the full course of spraying, transplant it into a new substrate. When whiteflies appear, the flower covers a white fine-grained coating, the leaves quickly wither and fall, the peduncles can dry out. To restore the leaves, use a soap solution, it will remove plaque, then spray with a special solution of pests. The procedure is repeated for several consecutive weeks until complete cure.


Старые листья могут желтеть и опадать

Old leaves may turn yellow and fall

The leaves may turn yellow and fall due to old age, but in their place, new, young, light green leaves will surely grow. Usually the process begins with the lowest leaves, gradually rising up the trunk of the flower. There are also phalaenopsis hybrids that necessarily drop leaves during flowering.

Close pot

If the orchid is dry and has a painful appearance, the cause may also unfavorable growing conditions.

When the plant has grown and most of the roots are already outside the pot, or squeezed in it, the roots are deformed and dry, the penetration of moisture and nutrients is difficult, as a result the leaves turn yellow and begin to fall down . Transplant phalaenopsis into a pot of a suitable size, if necessary, dividing it, try not to damage the buds and peduncles. After transplanting, the plant will quickly return to normal.


Orchids are tender and capricious, sensitive to any changes. Changing lighting and temperature, or moving to a new place are stressful. If the leaves are yellow and opal after the above changes, one wonders why the flower withered.The flower should get used to stressful situations, gradually rearrange the pot to a new place for a couple of hours, then return it back.

Homeland of the tropic flower, hence such a love for a humid environment. Dry air will provoke yellowness of leaves, dryness at the tips and falling off. To revitalize it, provide the desired level of humidity with a humidifier or frequent spraying, and the flower will quickly return to normal. If the soil is dry, rinse it under running water.


  • good substrate;
  • lighted place without direct sunlight;
  • watering as the soil dries up at room temperature;
  • a suitable pot;
  • fertilizers according to the instructions;
  • timely treatment of infections and getting rid of pests.

Care recommendations

If you follow the care rules, but the orchid dries anyway, try to adopt the following tips:

  1. Alternate with Immerse watering aids in a large container of water, and next time water from above, without falling on the lower leaves and trunk.
  2. Regularly spray the flower with warm water.
  3. If the roots are bright green – moisture enough in the substrate, if lightened, become silver – urgently water, the soil dries.
  4. After flowering, do not cut the peduncles under the root, if they have not dried up, leave them alone, after a while carefully trim dry areas.
  5. Use a special primer for orchids, it contains pieces of bark.
  6. Cover the earth with a moss, this will protect it from drying out and keep moisture inside the pot.
  7. The orchid is transplanted only during dormancy, until the bulb appears, and the flower stalk withers.

If the phalaenopsis does not bloom for a long time, place it in a dark room, later returning it to its place. A contrast shower also helps a lot – at first it’s good warm water, then cool. Soon she will please you with a young arrow.

Why do orchids turn yellow leaves
Why do the leaves of the orchid turn yellow ??
Why do the leaves of orchids turn yellow.


No matter what causes the yellowness on the leaves, this is a cause for concern and an alarm. If you do not respond in time, the plant will die Provide proper care for the orchid, and it will surely delight you with long and lush flowering.

Why does the orchid turn yellow
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Anna Evans

Author ✓ Farmer

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